Both times for me there was no smoke, because the turbo was making no boost. It just made a whinny noise. Would have to be a big boost leak to make no boost at all
Nothing wrong with ones on ebay as long as they arent the crush plate type. Have had no issues with ones from import car parts etc. alot cheaper than others too
Its okay for most bolts.struggles on a few of the very tight bolts. But crack it with a ratchet and a breaker and its fine. Its better than the airgun i have, that is shit lol